2,5-Dimethyl-2,5-di(tert-butylperoxy)-3-hexyne (CAS 1068-27-5)

1068-27-5C16H30O48 suppliers15 products100%

Hazard Class:

GHS Symbols:

Overview & Applications

2,5-Dimethyl-2,5-di(tert-butylperoxy)-3-hexyne (CAS 1068-27-5) is an organic peroxide compound with molecular formula C16H30O4 and molecular weight 286.41. Also known as 2,5-BIS(TERT-BUTYLPEROXY)-2,5-DIMETHYL-3-HEXYNE, 2,5-DIMETHYL-2,5-BIS(T-BUTYLPEROXY)-HEXYNE-3, 2,5-DIMETHYL-2,5-DI(T-BUTYLPEROXY)-3-HEXYNE. It typically appears in liquid form.

2,5-Dimethyl-2,5-di(tert-butylperoxy)-3-hexyne (CAS number: 1068-27-5) is an high-performance chemical raw material that is designed specifically for the demanding coatings, adhesives, and composites industries, offering stable and long-lasting curing effects. It is frequently used in the crosslinking curing of automotive parts and high-end sealing materials. Its exceptional chemical characteristics give it an important position in modern industrial formulations, providing enterprises with highly efficient product solutions.

Below you can find its complete physical and chemical properties, safety data, GHS hazard classifications, and a catalog of 15 products from 8 verified manufacturers.

Other Names & Identifiers

CAS 1068-27-5 is also known as:

2,5-BIS(TERT-BUTYLPEROXY)-2,5-DIMETHYL-3-HEXYNE
2,5-DIMETHYL-2,5-BIS(T-BUTYLPEROXY)-HEXYNE-3
2,5-DIMETHYL-2,5-DI(T-BUTYLPEROXY)-3-HEXYNE
2,5-DIMETHYL-2,5-DI(TERT-BUTYLPEROXY)-3-HEXYNE
2,5-DIMETHYL-2,5-DI(TERT-BUTYLPEROXY)-HEXYNE-3
Di-tert-butyl 1,1,4,4-tetramethylbut-2-yn-1,4-ylene diperoxide
2,5-dimethyl-2,5-di(butylperoxy)hexyne-3
2,5-dimethyl-2,5-di(t-butylperoxy)-3-hexyn
2,5-dimethyl-2,5-di(t-butylperoxy)hexyne-3
Peroxide,(1,1,4,4-tetramethyl-2-butyne-1,4-diyl)bis[(1,1-dimethylethyl)
DYBP
5-bis(tert-butylperoxy)-2,5-dimethyl-3-hexyne

Basic Information

CAS Number

1068-27-5

Molecular Formula

C16H30O4

Molecular Weight

286.41

EINECS Number

213‑944‑5

MDL Number

MFCD00048242

BRN Number

1754026

Chemical Name

2,5-Dimethyl-2,5-di(tert-butylperoxy)-3-hexyne

Last Updated

7/28/2025

Aliases

2,5-BIS(TERT-BUTYLPEROXY)-2,5-DIMETHYL-3-HEXYNE

2,5-DIMETHYL-2,5-BIS(T-BUTYLPEROXY)-HEXYNE-3

2,5-DIMETHYL-2,5-DI(T-BUTYLPEROXY)-3-HEXYNE

2,5-DIMETHYL-2,5-DI(TERT-BUTYLPEROXY)-3-HEXYNE

2,5-DIMETHYL-2,5-DI(TERT-BUTYLPEROXY)-HEXYNE-3

Di-tert-butyl 1,1,4,4-tetramethylbut-2-yn-1,4-ylene diperoxide

2,5-dimethyl-2,5-di(butylperoxy)hexyne-3

2,5-dimethyl-2,5-di(t-butylperoxy)-3-hexyn

2,5-dimethyl-2,5-di(t-butylperoxy)hexyne-3

Peroxide,(1,1,4,4-tetramethyl-2-butyne-1,4-diyl)bis[(1,1-dimethylethyl)

DYBP

5-bis(tert-butylperoxy)-2,5-dimethyl-3-hexyne

Physical and Chemical Properties

Appearance

Pale yellow clear liquid

Appearance State

Liquid. Insoluble in water.

Color

Light Yellow

Odor

Faint odor

Form

Liquid

Melting Point

88 (SADT lit.)

Boiling Point

348.8 (predicted)

Flash Point

ca. 86.7

Density

1.26 @ 25 °C

Vapor Density

>1 (air=1)

Vapor Pressure

0.011 Pa @ 20°C

Refractive Index

1.4340 (est.)

LogP Value

6.71 @ 25 °C

Merck Index

Not Listed

Solubility

2.2 mg/L at 20°C

Water Solubility

2.2 mg/L @ 20°C

Solubility Detail

Solubility in water is 2.2 mg/L (20°C).

Storage Conditions

Store at 2–8°C.

InChI Key

YXJHORJVGJJCMA-UHFFFAOYSA-N

Safety Data

GHS Hazard Symbols

Hazard Class

Signal Word

Danger

Hazard Symbols

Risk Codes

R7, R8, R36/37/38, R41

UN Number

UN 3106

IARC Classification

Not Classified

WGK Germany

RTECS Number

MQ9750000

Auto-ignition Temperature

ca. 240

TSCA Listed

Listed (Active)

Packing Group

Customs Code

2909600000

Occupational Exposure Band (OEB)

Not Specified

Occupational Exposure Limit (OEL)

Not Specified

Immediately Dangerous to Life or Health (IDLH)

Not Specified

Hazard Statements

H242, H315, H319

Precautionary Statements

P210, P235, P280, P302+P352, P370+P378, P410

Safety Statements

S3/7, S14, S17, S26, S36/37/39, S47

Suppliers & Products (8 suppliers, 15 products)

8 verified suppliers offering 15 products for 2,5-Dimethyl-2,5-di(tert-butylperoxy)-3-hexyne (CAS 1068-27-5). Compare equivalent grades across brands (e.g., Trigonox vs Luperox) by assay, physical form, and availability from trusted manufacturers and distributors worldwide.

Company Name	Product Model	Assay	Physical Form	Status
Anhui Changhe New Material Co., Ltd.	Bluerox BX-30	45%	Powder	In Development
Lanzhou Auxiliary Agent Plant Co., Ltd.	LQ-BPDY		-	In Production
Chinasun Specialty Products Co.,Ltd.	Enox YNE-85MO	85%	Liquid	In Production
NOF CORPORATION	PERHEXYNE 25B	90%	Liquid	In Production
NOF CORPORATION	PERHEXYNE 25B-40	40%	Powder	In Production
United Initiators GmbH	DYBP		-	Imported
Pergan GmbH	PEROXAN HXY-85 W	85%	Liquid	Imported
Vanderbilt Chemicals, LLC	VAROX 130 LIQUID	94%	Liquid	Production Suspended
Nouryon Chemicals International B.V.	Trigonox 145-45B-PD	45%	Powder	In Production
Pergan GmbH	PEROXAN HXY-45 P	45%	Powder	Imported
Nouryon Chemicals International B.V.	Trigonox 145-E85	85%	Liquid	In Production
Chinasun Specialty Products Co.,Ltd.	Enox YNE-45DB	45%	Powder	In Production
Chinasun Specialty Products Co.,Ltd.	Enox YNE-95	95%	Liquid	In Production
United Initiators GmbH	DYBP-85-WO	85%	Liquid	Imported
Vanderbilt Chemicals, LLC	VAROX 130-XL	45%	Powder	In Production

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